>>>>>>>>How can you have a container with a different DS than form's DS? What type of a container it is?
>>>>>>>Each container gets data session object.
>>>>>>
>>>>>>Do you mean you add DS object programmatically in container's Init? Or how exactly do you do it? Can you please explain it in a little bit more details?
>>>>>>
>>>>>>Thanks.
>>>>>Yes, in Init I am adding Session object to each container.
>>>>
>>>>It is extremely cumbersome arrangement, but still it has nothing to do with combobox problem, correct? Basically, what you expect to happen when user makes another combobox selection?
>>>I am checking InterativeChange that combo's ControlSource is not updated or gets updated with some kind of delay.
>>
>>It is too early. Check it in LostFocus event.
>Right, but I want to update SQL right away, as soon as a user makes his selection.

If you want to force update in Interactivechange then add the line there:
Replace myvalue With this.value in mycursor
(adjust it in case of different data types)